Difference between revisions of "love.touch.getPosition"

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</source>
 
</source>
 
=== Arguments ===
 
=== Arguments ===
−
{{param|userdata|id|The identifier of the touch-press. Use [[love.touch.getTouches]], [[love.touchpressed]], or [[love.touchmoved]] to obtain touch id values.}}
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{{param|light userdata|id|The identifier of the touch-press. Use [[love.touch.getTouches]], [[love.touchpressed]], or [[love.touchmoved]] to obtain touch id values.}}
 
=== Returns ===
 
=== Returns ===
 
{{param|number|x|The position along the x-axis of the touch-press inside the window, in pixels.}}
 
{{param|number|x|The position along the x-axis of the touch-press inside the window, in pixels.}}
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== Notes ==
 
== Notes ==
 
The unofficial Android and iOS ports of LÖVE 0.9.2 reported touch-press positions as normalized values in the range of [0, 1], whereas this API reports positions in pixels.
 
The unofficial Android and iOS ports of LÖVE 0.9.2 reported touch-press positions as normalized values in the range of [0, 1], whereas this API reports positions in pixels.
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 +
== Examples ==
 +
=== Draw a circle at each location in the window where a touch press is active. ===
 +
<source lang="lua">
 +
 +
function love.draw()
 +
    local touches = love.touch.getTouches()
 +
 +
    for i, id in ipairs(touches) do
 +
        local x, y = love.touch.getPosition(id)
 +
        love.graphics.circle("fill", x, y, 20)
 +
    end
 +
end
 +
</source>
  
 
== See Also ==
 
== See Also ==

Latest revision as of 18:22, 22 December 2015

Available since LÖVE 0.10.0
This function is not supported in earlier versions.

Gets the current position of the specified touch-press, in pixels.

Function

Synopsis

x, y = love.touch.getPosition( id )

Arguments

light userdata id
The identifier of the touch-press. Use love.touch.getTouches, love.touchpressed, or love.touchmoved to obtain touch id values.

Returns

number x
The position along the x-axis of the touch-press inside the window, in pixels.
number y
The position along the y-axis of the touch-press inside the window, in pixels.

Notes

The unofficial Android and iOS ports of LÖVE 0.9.2 reported touch-press positions as normalized values in the range of [0, 1], whereas this API reports positions in pixels.

Examples

Draw a circle at each location in the window where a touch press is active.

function love.draw()
    local touches = love.touch.getTouches()

    for i, id in ipairs(touches) do
        local x, y = love.touch.getPosition(id)
        love.graphics.circle("fill", x, y, 20)
    end
end

See Also

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